Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.70 A. 0.67 A. 0.25 A. 0.50 A. 0.70 A. 0.67 A. 0.25 A. 0.50 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A transducer measures a range of 0 – 200 N force with a resolution of 0.15 percent of full scale. What is the smallest change which can be measured by this transducer ? 3.33 N 6.66 N 0.3 N 0.15 N 3.33 N 6.66 N 0.3 N 0.15 N ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? Shunt Current transformers Potential transformers All of the listed here Shunt Current transformers Potential transformers All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which one of the following meters has maximum loading effect on the circuit under measurement ? 10 MΩ/volt 1000 Ω/volt 100 Ω/volt 1 MΩ/volt 10 MΩ/volt 1000 Ω/volt 100 Ω/volt 1 MΩ/volt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then V1 = 0V and V2 = 0V. V1 = 250V and V2 = 250V. V1 = 300V and V2 = 200V. V1 = 200V and V2 = 300V. V1 = 0V and V2 = 0V. V1 = 250V and V2 = 250V. V1 = 300V and V2 = 200V. V1 = 200V and V2 = 300V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used? 100 ohms 100 K ohms 99.99 K ohms 99.99 ohms 100 ohms 100 K ohms 99.99 K ohms 99.99 ohms ANSWER DOWNLOAD EXAMIANS APP
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